この研究は、第3世代（3G）携帯電話から放射される電磁放射（EMR）が、ラットの眼球組織および血液の抗酸化および酸化ストレスパラメータに及ぼす影響を調べた。18匹のWistarアルビノラットをランダムにばく露群と対照群に分けた（各n = 9）。ばく露群は、標準化された1日使用量の3G携帯電話の電磁放射を20日間継続して受けた。ばく露期間終了後、眼球組織のグルタチオンペルオキシダーゼ（GSH-Px）とカタラーゼ（CAT）のレベル、血液中のマロンジアルデヒド（MDA）とGSHレベルを測定した。その結果、眼球組織のGSH-PxとCATレベル、また血中のMDAとGSHレベルにおいて、ばく露群と擬似ばく露群の間に有意差は見られなかった、と報告している。
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The effects of electromagnetic fields emitted by a mobile phone on oxidative stress parameters in eye tissue and blood of rats should be investigated.
Rats were randomly divided into a control group and an exposure group (n=9 per group).
| ばく露 | パラメータ |
|---|---|
|
ばく露1:
1.9–2.2 GHz
ばく露時間:
continuous for 40 min/day from the 2nd to the 21st day
exposure group
|
|
|
ばく露2:
1.9–2.2 GHz
ばく露時間:
continuous for 40 min/day from the 2nd to the 21st day
control group
|
- |
| 周波数 | 1.9–2.2 GHz |
|---|---|
| タイプ |
|
| ばく露時間 | continuous for 40 min/day from the 2nd to the 21st day |
| Additional information | exposure group |
| ばく露の発生源／構造 |
|
|---|---|
| ばく露装置の詳細 | during exposure, rats were kept in two 40 cm x 30 cm x 15 cm polypropylene cages without wood-chip bedding, placed 10 m apart; under each cage a recorder and a mobile phone was placed: for the first 20 min recorder B was turned off, recorder A was turned on and the recorded speech transmitted via phone A to phone B; during the second 20 min recorder A was turned off, recorder B was turned on and the recorded speech was transmitted via phone B to phone A; except from exposure, mobile phone was kept in standby mode for the rest of the day |
| Additional information | batteries were charged continuously |
| 測定量 | 値 | 種別 | Method | Mass | 備考 |
|---|---|---|---|---|---|
| SAR | 0.5 W/kg | - | - | - | - |
| 周波数 | 1.9–2.2 GHz |
|---|---|
| タイプ |
|
| ばく露時間 | continuous for 40 min/day from the 2nd to the 21st day |
| Additional information | control group |
| ばく露の発生源／構造 |
|
|---|---|
| ばく露装置の詳細 | rats were kept in two 40 cm x 30 cm x 15 cm polypropylene cages without wood-chip bedding, placed 10 m apart; under each cage a recorder and a mobile phone was placed: for the first 20 min recorder B was turned off, recorder A was turned on; during the second 20 min recorder A was turned off, recorder B was turned on; mobile phones in standby mode; no speech transmitted; batteries were charged continuously |
| Additional information | batteries were charged continuously |
No parameters are specified for this exposure.
No significant differences between the control group and the exposure group were observed.
The authors conclude that electromagnetic fields emitted by a mobile phone do not induce oxidative stress in the eye tissue and blood of rats.
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